Experimental plot ten Pedicularis planting

To experimentally test hypotheses about how much Pedicularis canadensis, a native hemiparasite, affects the demographic rates (survival, growth, and reproduction) of other species, we planted plugs of P. canadensis in the center of a circle (with a radius of 20 cm) that contains 8 species. These eight common native prairie plant species are Echinacea angustifolia, Liatris ligulistylis, Solidago speciosa, Dalea purpurea, Pediomelum argophyllum, Sporobolus heterolepis, Koeleria macrantha, and Hesperostipa spartea. For all but Echinacea, seed was collected last year from local sources. Echinacea is the focal species of other experiments and had been planted previously. Echinacea plants served as a reference point when establishing our circles and were always directly west of P.canadensis. Circles are planted in 6 rows that were randomly selected from within the existing experimental plot 10. Rows 315, 436, 443, 643, 656, and 785 were selected. Rows contain 11 circles each, starting at 1m and going to 11m, evenly distributed 1m apart.

All circles were planted on July 29th, 2021.Plants were planted as plugs. Plugs were grown by Chicago Botanic Garden production staff before being transported to Minnesota and transplanted. Pedicularis served as the treatment and had 3 factor levels (0, 1, or 2 Pedicularis plants). Treatments were randomly assigned to circles and Pedicularis were planted in the center of each circle between August 9th and 13th, 2021. Plants in the circles were measured between August 16th and 20th, 2021.Traits measured were size and reproductive status.

Start year: 2021

Location: Grant County, Minnesota; exPt 10

Overlaps with: Experimental plot management,

Andropogon adventures

We’ve been missing Laura, John, and Kennedy this week, but we’ve had to forge ahead without them. Today, Mia and Wyatt finished rechecks while I staked random points at nice, eth, and koons for our Andropogon expedition later in the day. After staking, I met with Stuart to learn some R-Studio data wrangling skills. At lunch, Wyatt reported on the Liatris pollinator observations – the team conducted 95 total observations this summer and mapped over 2,500 plants!

After lunch, we learned a new protocol for harvesting Andropogon gerardii (big bluestem). We visited a third of the random points at each site and counted and harvested all the Andropogon culms within one meter of the point. Jared and I collected three full bags of Andropogon at East Riley, a site which had been burned, but we didn’t find a single culm at the other sites (spp and on27).

After work, the Elk Lake house spent all evening cooking up a giant batch of Wyatt’s peanut noodles in preparation for the bonfire tomorrow night. Mia wisely used the food processor to grate the carrots, so no fingers were lost. We doubled the recipe, so there were an awful lot of carrots!

p1 more like pDone

On Friday we finished measuring p1! This was a big push to get it done last week and on Friday it took some expert timing and carful radar studying but we got it done.

This was a massive feat for the team, and it is super exciting to have it done. There are 10,673 total positions, out of that we found 2,899 basal plants, and 81 flowering plants, we found around 3,523 staples. Thanks to Wyatt’s Time Motion Study we know that we spent 198 person hours measuring p1. Below you can see our nice completed map of p1!

I now have some coding to do to get ready for rechecks but for now the team is having a well-deserved break from measuring p1.

Measuring P1 Progress Update

I missed a day but we have made significant progress measuring in the past few days.

On Wednesday (Aug 18) we dropped the number of segments from 32 to 19 in an afternoon with 2 measuring pairs. This was Allie’s last day measuring and we very much missed her today.

Today (Aug 19) we missed Allie and John but not so much that we couldn’t get anything done. The opposite in fact we got 11 segments done with 2 pairs (5 people) in ~4 hours. We have 8 segments left (woo!), today was very much a penultimate day and tomorrow might be a very big day out in p1 check back tomorrow to find out how we did.

Measuring p1 progress update

On Friday the team made great progress measuring, with the help of Gretel (World Record holder for fastest measurer) the team completed 16 segments in ~3 hours with 3 measuring pairs. We now have finished the 99’s both north and south and are off in the Q-gen/big batch experiment. We have a total of 33 segments left out of 141 segments so we are 77% complete! This is amazing and I expect that we will be done before the end of the week.

Measuring p1 progress update

Today the team continued working in the 1999 experiments. The measuring in these experiments feels slow because the plants are so densely packed but we got a good chunk done today.

With 3 measuring pairs in ~3 hours we got 12 segments done. The map makes it seem like all of 99north is done but there are actually 3 segments in their that aren’t done. Tomorrow we will finish the 1999 experiment and start Big Batch/Q-Gen which is the big green chunk on the map.

Measuring p1 progress update-day 4&5

This is a combined update from today and Friday.

On Friday the team measured 6 segments in ~1.5 hours with 3 measuring pairs in the 96, 97, 98 experiments. Friday also was when Amy W. made her annual measuring guest appearance.

Today we measured 11 segments with 3 pairs in ~3 hours. We completed the inbreeding, 96, 97, 98, experiments and started the 99 experiments. Tomorrow we will work on completing the 99 experiments which are a bit dense but we will get through them.

Measuring p1 progress update

Today we continued our efforts in measuring p1. We finished the miscellaneous assortment of experiments (SPP, 2001, and Monica’s 2003) and we started working on the 96, 97, and 98 experiments. We had 4 measuring pairs going and in the course of ~2.5 hours we completed 21 segments.

As you can see below we have made a HUGE jump westward. The team has done an amazing job cranking through the plot. Next we will finish the 96, 97, and 98 experiments and keep working west into the inbreeding 1 experiment.

Measuring p1 progress update

Yesterday we continued our measuring progress we starting working on a miscellaneous assortment of experiments, seeds from Staffonson, and two different 2001 experiments. The team completed 23 total segments with 4 measuring pairs in ~4 hours. This brings the total segments to 41 segments.

Below you can see the updated progress map, there has been a big jump in the purple between Aug 03 to Aug 04. The team will continue to work west ward today as we start the 96, 97, 98 experiments.

Measuring p1 Progress update

One of the large tasks that the team does every year is measure the first experimental plot (p1). This is the largest of the the experimental plots with a daunting 10,673 total positions. The plot is broken up into 46 rows, some of these rows are so long that we have broken them up into segments. There are 141 total segments.

I will be posting daily (or close to daily) updates on our measuring progress right here on the flog. Yesturday (Aug 03 2021) was our first day of measuring p1. We start with one of the inbreeding experiments, the team measured a total of 18 segments over the course of 3 ish hours with 4 measuring pairs.

Below I have attached a map of the plot, it is colored with which positions have been measured and what we have yet to do. There is a lot left to do but we have made GREAT progress for just one day!